Barium

City of Hanford

Barium is a mineral present in rocks, soil and water. High concentrations of barium in drinking water increase the risk of cardiovascular disease and hypertension.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2013	N/A	0	N/A
2014	N/A	0	N/A
2015	ND	13	ND
2016	N/A	0	N/A
2017	N/A	0	N/A
2018	ND	10	ND
2019	ND	1	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 700 ppb

The EWG Health Guideline of 700 ppb for barium was defined by EWG as benchmark that protects against harm to the kidneys and the cardiovascular system.

EPA Maximum Contaminant
Level (MCL) 2,000 ppb

The legal limit for barium, established in 1991, was based on a 10-week study of barium exposure in 11 adult male volunteers. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date	Lab ID	Result
2015-12-14	5810-043-1400	ND
2015-12-14	5810-033-0840	ND
2015-12-14	5810-034-1230	ND
2015-12-14	5810-042-1045	ND
2015-12-14	5810-036-1220	ND
2015-12-14	5810-041-1420	ND
2015-12-14	5810-037-1200	ND
2015-12-14	5810-040-1125	ND
2015-12-14	5810-038-0815	ND
2015-12-14	5810-039-0945	ND
2015-12-15	5810-028-1145	ND
2015-12-15	5810-026-1018	ND
2015-12-15	5810-031-1055	ND
2018-12-18	5810-043-0935	ND
2018-12-18	5810-042-0820	ND
2018-12-18	5810-033-1120	ND
2018-12-18	5810-031-1015	ND
2018-12-20	5810-037-1000	ND
2018-12-20	5810-040-0855	ND
2018-12-20	5810-036-1045	ND
2018-12-20	5810-041-0835	ND
2018-12-20	5810-034-1015	ND
2018-12-20	5810-028-0930	ND
2019-05-09	5810-039-1100	ND